Tektronix P6136 User manual

Brand: Tektronix

Model: P6136

Category: Measuring, testing & control

Type: User manual

Instruction Manual

P6136

10X Passive Probe

for 2400 Series Oscilloscopes

070-6025-04

*P070602504*

070602504

Warning

The servicing instructions are for use by qualified

personnel only. To avoid personal injury, do not

perform any servicing unless you are qualified to

do so. Refer to all safety summaries prior to

performing service.

www.tektronix.com

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes

that in all previously published material. Specifications and price change privileges reserved.

Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077-1000

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY

Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship

for a period of one (1) year from the date of purchase from an authorized Tektronix distributor. If any such product proves

defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for

parts and labor, or will provide a replacement in exchange for the defective product. Batteries are excluded from this

warranty.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the

warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for

packaging and shipping the defective product to the service center designated by Tektronix, shipping charges prepaid, and

with a copy of customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the shipment is

to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying

all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate

maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting

from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair

damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction

caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated with other

products when the effect of such modification or integration increases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE LISTED PRODUCTS IN LIEU OF

ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY

IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND

EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX

AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR

CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS

ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Contacting Tektronix

Product

support

For questions about using Tektronix measurement products, call

toll free in North America:

1-800-833–9200

6:00 a.m. – 5:00 p.m. Pacific time

Or contact us by e-mail:

[email protected]

For product support outside of North America, contact your local Tektronix distributor

or sales office.

Service

support

Tektronix offers extended warranty and calibration programs as options on many

products. Contact your local Tektronix distributor or sales office.

For a listing of worldwide service centers, visit our web site.

For other

information

In North America:

1-800–833–9200

An operator can direct your call.

To write us

Web site

Tektronix, Inc.

P.O. Box 500

Beaverton, OR 97077-1000

USA

www.tektronix.com

P6136 Instruction Manual

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to

this product or any products connected to it. To avoid potential hazards, use this

product only as specified.

Only qualified personnel should perform service procedures.

Connect and Disconnect Properly. Do not connect or disconnect probes or test

leads while they are connected to a voltage source.

Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings

and markings on the product. Consult the product manual for further ratings

information before making connections to the product.

The common terminal is at ground potential. Do not connect the common

terminal to elevated voltages.

Do not apply a potential to any terminal, including the common terminal, that

exceeds the maximum rating of that terminal.

Do Not Operate with Suspected Failures. If you suspect there is damage to this

product, have it inspected by qualified service personnel.

Do Not Operate in Wet/Damp Conditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Terms in this Manual. The following terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result

in injury or loss of life.

To Avoid Fire or

Personal Injury

Symbols and Terms

P6136 Instruction Manual

Service Safety Summary

Only qualified personnel should perform service procedures. Read this Service

Safety Summary and the General Safety Summary before performing any service

procedures.

Do Not Service Alone. Do not perform internal service or adjustments to this

product unless another person capable of rendering first aid and resuscitation is

present.

P6136 Instruction Manual

Operating Basics

The P6136 probe is a 350 MHz, 10X, 1.3 meter, passive voltage probe designed

specifically for use with Tektronix 2400 Series oscilloscopes having bandwidths

greater than 150 MHz. The P6136 comes standard with the Tektronix subminia-

ture-size probe tip/hybrid assembly and is fully compatible with the Tektronix

Subminiature family of accessories. The Compact series probe tip/hybrid

assembly comes standard on the P6136 Option 25. The Compact probe

tip/hybrid assembly is slightly larger in diameter than the Subminiature series,

offering greater durability and ruggedness in those environments and applica-

tions where required. The compact tip is not compatible with the Subminiature

series except for the ground collar and the low-inductance (2.3 inch) ground lead.

The P6136 Option 25 is supplied with a complement of accessories; optional

accessories are available for both tip sizes.

You may convert both probe tip assemblies to Tektronix Miniature series probe

tips by using the subminiature/compact-to-miniature probe-tip adapter (See the

optional accessory lists for each probes in the Replaceable Parts section

beginning on page 14).

WARNING. To avoid electric shock when using the probe, do not touch the

metallic portions of the probe head while connected to a voltage source.

Probe Compensation

Due to variations in oscilloscope input characteristics, probe low-frequency

compensation should be checked and adjusted after moving the probe from one

oscilloscope input to another. To adjust the probe low-frequency compensation,

apply a 1 kHz square wave (such as an oscilloscope calibrator output) to the

probe tip. Using a nonconductive low-reactance alightment tool, adjust the probe

compensation capacitor through the hole in the compensation box to obtain the

squarest waveform at the front corner edge. See page 9 for complete low- and

high-frequency compensation adjustment procedures.

Operating Basics

P6136 Instruction Manual

Inductive Effects of Probe Grounding

Ground lead inductance can significantly reduce the performance of a probe. As

shown in Figure 1, the ground lead inserts inductance into the signal path

forming a series-resonant circuit with the probe input capacitance C

and

source

as damping. This forms a resonant circuit with f

+ 1 B (2p LC

Probe C

Typ. 10.8 pF

Probe R

10 MW

Ground lead

inductance

source

Figure 1: Circuit model: test point and probe input

A six-inch ground lead has approximately 150 nH of inductance, which produces

an f

of approximately 130 MHz within the frequency range of the instrument.

This greatly degrades rise time, bandwidth, and transient accuracy as shown in

Figure 2.

Figure 2: Typical step response with six-inch ground lead

For best results, ensure that ground-lead inductance is at a minimum. Two

methods for doing so are the Low-Inductance Ground Lead and the Klipkit.

Operating Basics

P6136 Instruction Manual

The low-inductance ground lead provided with all Tektronix P6136 probes

allows for a substantial reduction in ground-lead inductance, approximately

32 nH instead of 150 nH.

To install the low-inductance ground lead, refer to Figure 3 and perform the

following steps:

1. Unscrew and remove the ribbed-tip shell and slide off the ground collar with

ground lead.

2. Slip on the low-inductance ground lead collar (1) and reinstall the ribbed

plastic tip cover.

3. Install the low-inductance lead (2) from the accessory pack.

Figure 3: Low-inductance ground lead

The optional Klipkit connector (see the optional accessory lists beginning on

page 14) provides a hands-free signal and ground connection to an integrated

circuit with up to 16 pins. The Klipkit ground is acquired by inserting a

connecting pin (included) into the Klipkit at the proper pin location. The probe

body (with ribbed-tip cover removed) then makes a signal connection when

inserted into other pin locations.

Screw-in probe tip

Ground lead

Klipkit

Subminiature only

Figure 4: Klipkit connector

Low-Inductance Ground

Lead

Klipkit Connector

Operating Basics

P6136 Instruction Manual

Grounding the Probe

Connect the probe to the instrument and connect the ground lead to ground

before making any measurement. Ensure that no part of the ground lead contacts

voltage in the circuit under test. Except for the probe tip and BNC center

conductor, all accessible metal (including the ground clip) is connected to the

BNC shell.

WARNING. To avoid electric shock when using the probe, keep your fingers

behind the finger guard on the probe body. See Figure 5 below.

Hand contact area

Finger guard

Figure 5: Probe finger guard and hand contact area

P6136 Instruction Manual

Specifications

The characteristics listed in Table 1 apply to P6136 probes installed on Tektronix

2400 Series oscilloscopes unless otherwise noted.

Specifications apply when the probe and host instrument warm up for a period of

at least 10 minutes in an environment that does not exceed the limits described in

Table 2 on page 7.

Table 1: Electrical characteristics

Characteristic Description

Attenuation

10X: ±1% at DC

Input resistance

2,3

10 MW ±1% at DC

Input capacitance

10.8 pF at DC

Compensation range 12 pF to 18 pF

Signal delay Delay difference between any two probes is

less than 200 ps.

Maximum system bandwidth (–3 dB) 350 MHz

Maximum Input Voltage

4,5

300 V RMS CAT I or 300 V DC CAT I

150 V RMS CAT II or 150 V DC CAT II

100 V RMS CAT III or 100 V DC CAT III

425 V peak, @50% DF, <1 sec PW

750 V peak, @10% DF, <50 ms PW

See Figure 8 for voltage derating curve.

Installed on Tektronix 2400 Series oscilloscope, bandwidth 150 MHz or greater.

System characteristic.

Also see Figure 7.

As defined in EN61010-1. See Certifications and compliances in Table 4

RMS=Root Mean Square=rms=The square root of the average of the sum of the

squares of the instantaneous voltage in one cycle = .

300 VDC=300V RMS, 420 V Peak (sinewave)=300 V RMS See Figure 6.

(fx

)

ńn

Specifications

P6136 Instruction Manual

@25% Duty Factor

=(1/2 Peak V) RMS

@50% Duty Factor

=(1.414 (Peak V)) RMS

Special case of square wave:

@20% Duty Factor

=[(V

Peak

)

(Duty Factor)]

1/2

Example: Maximum Input Voltage

=[(650 V Pk)

(.20)]

1/2

= 290 V RMS

Figure 6: Maximum input voltage calculation example

Frequency (Hz)

110

Phase (degrees)

Magnitude (ohms)

–25

–50

–75

–100 1

in (degrees)

Z in (ohms)

Figure 7: Typical P6136 input impedance

Specifications

P6136 Instruction Manual

Frequency (MHz)

1 10 100

100

500

Voltage (RMS)

Figure 8: Typical P6136 voltage derating

Table 2: Environmental characteristics

Characteristic Description

Temperature range

Operating –15_ C to 65_ C (+5_ F to 149_ F)

Nonoperating –62_ C to 85_ C (–80_ F to 185_ F)

Humidity Five cycles (120 hr) at 95% to 97% relative

humidity, per Tektronix standard 062–2847–00,

Class 3 (MIL-T-28800).

Refer to MIL-E-16400F, paragraph 4.5.9

through 4.5.9.5.1, class 4.

Altitude < 2000 meters

Table 3: Physical characteristics

Characteristic Description

Net weight

150.4 g (5.3 oz)

Probe cable length 1.3 m (4.3 ft)

Includes accessories.

Specifications

P6136 Instruction Manual

Table 4: Certifications and compliances

EC Declaration of

Conformity

Compliance was demonstrated to the following specification as listed in

the Official Journal of the European Communities:

Low Voltage Directive 73/23/EEC as amended by 93/68/EEC:

EN 61010-1/A2

EN 61010-2-031:1994

Safety requirements for electrical equipment

for measurement, control, and laboratory use

Particular requirements for hand-held probe

assemblies for electrical measurement and

test

Overvoltage

Category

Category: Examples of Products in this Category:

CAT III Distribution-level mains, fixed installation

CAT II Local-level mains, appliances, portable

equipment

CAT I Signal levels in special equipment or parts of

equipment, telecommunications, electronics

Pollution Degree 2 Do not operate in environments where conductive pollutants may be

present.

Safety UL3111-1, First Edition & IEC61010-2-031, First Edition

CSA C22.2 No. 1010.1-92 & CAN/CSA C22.2 No. 1010.2.031-94

EN61010-1/A2

EN61010-2-031

Pollution Degree 2

P6136 Instruction Manual

Service Information

WARNING. The following instructions are for use by qualified service personnel

only. To avoid electrical shock, do not disassemble or maintain the probe while it

is connected to a signal source other than those specified in this procedure.

Adjustment Procedure

This section contains procedures to adjust the P6136 probe. Always perform the

low-frequency compensation adjustment before proceeding to the high-frequency

compensation adjustment.

Table 5 lists the recommended test equipment needed to perform the adjustment

procedures.

Table 5: Test equipment

Description Minimum requirements Example product

Oscilloscope

Tektroni

445B

Input resistance 1 MW ±0.5%

Input capacitance 10 pF to 18 pF

Bandwidth (–3dB) ≥ 350 MHz

Calibration generator Wavetek 9100 Universal Calibration

System with oscilloscope calibration

module (Option 250)

Fluke 5500A multi-product calibrator with

oscilloscope calibration Option 5500A-SC

Amplitude > 60 V

Repetition rate 100 kHz

Leveled sine wave generator Amplitude adjustable to at least 1 V

p-p

into 50 W.

Frequency range must exceed 350 MHz,

fixed 50 kHz reference.

Wavetek 9500 High-Performance

Oscilloscope Calibrator

Precision coaxial cable 50 W BNC Tektronix 012-0482-XX

10X attenuator 50 W BNC Tektronix 011-0059-XX

Service Information

P6136 Instruction Manual

Table 5: Test equipment (cont.)

Description Example productMinimum requirements

Adapters

Subminiature tip Subminiature-to-BNC, 50 W terminated

Adapter, BNC-to-probe

Tektronix 001-0049-XX

Tektronix 013-0195-XX

Compact tip Compact-to-BNC, 50 W terminated

BNC-female-to-BNC-female

Tektronix 013-0227-XX

Tektronix 103-0028-00

Adjustment tool Insulated, low-reactance type Tektronix 003-1433-02

NOTE. To ensure accurate measurements, warm up all test equipment according

to the manufacturer’s recommendations before making any adjustments.

To adjust the probe low-frequency compensation do the following:

1. Connect the P6136 probe to the oscilloscope CH 1 input.

2. Set the oscilloscope controls for 100 mV (includes probe 10X attenuation),

1 ms, and DC coupling.

3. Use the hook tip to connect the probe to the oscilloscope calibrator output.

4. Set the oscilloscope triggering and amplitude controls for a stable display of

approximately five square wave cycles and an amplitude of four divisions at

center screen.

5. Use the low-reactance nonconductive adjustment tool to adjust the probe

LF COMP (low-frequency compensation) for the squarest waveform front

corner edge. See Figure 9 for the adjustment location.

6. Disconnect the test setup.

To adjust the probe high-frequency compensation do the following:

1. Connect the positive-going fast-rise output of the calibration generator to the

test oscilloscope with the precision coax cable and 10X attenuator.

2. Set the oscilloscope controls as follows:

Volts /Division 10 mV (includes 10X probe attenuation)

Time/Division 0.02 ms

Low-Frequency

Compensation

Adjustment

High-Frequency

Compensation

Adjustment

Service Information

P6136 Instruction Manual

Input Coupling DC

Bandwidth Full

3. Set the calibration generator to produce a fast-rise output with a repetition

rate of 10 ms (100 kHz). Adjust the output amplitude to produce a 5 division

display on the oscilloscope.

4. Adjust the oscilloscope triggering for a stable display and center the

waveform on screen.

5. Note the system aberrations for comparison in step 10 below.

6. Remove the precision coax cable from the test setup.

7. Connect the P6136 probe to the oscilloscope CH 1 input.

8. Connect the probe tip through the probe-tip-to-BNC adapter and a 50 W

termination to the positive-going fast-rise output of the calibration generator.

9. Set the oscilloscope coupling to the 1 MW DC position.

10. Note the high-frequency aberrations in the first 30 ns (in addition to the

system aberrations noted in part 5 above).

11. If the probe aberrations are greater than 4%, 6% peak to peak, proceed to

step 12 below. If the probe aberrations are typical (4%, 6% peak to

peak), proceed to step 18 below.

12. Disconnect the probe from the signal source and the oscilloscope.

13. Remove the plastic cover from the probe compensation box: unscrew the

compensation box retainer nut about two complete turns and lift the cover

out and up. Retighten the retainer nut.

14. Reconnect the probe to the signal source and oscilloscope.

Refer to Figure 9 for the location of adjustments to follow and Figure 10 to

identify the waveform areas affected by each adjustment.

15. Adjust R1 for the best overall flat response.

16. Adjust R3, R2, and C1 for the best corner response.

NOTE. High-frequency adjustments affect probe bandwidth. A small overshoot on

the leading edge of the pulse may be necessary to meet the bandwidth specifica-

tion.

Service Information

P6136 Instruction Manual

LF COMP

Retainer nut

Figure 9: Compensation adjustment locations

17. Disconnect the probe from the signal source and reinstall the compensation

box cover by performing step 13 above in reverse order.

18. Disconnect the test setup.

To check the probe bandwidth do the following:

1. Connect the P6136 probe output to the oscilloscope CH 1 input.

2. Connect the probe tip through the 50 W adapters and BNC cable to the

output of the leveled sine wave generator (as described in the High-

Frequency Compensation procedure above).

3. Set the oscilloscope controls for 100 mV (includes 10X attenuator), 1 ms,

and 1MW DC coupling.

4. Set the leveled sine wave generator frequency to 50 kHz.

5. Adjust the sine wave generator output amplitude to produce a 6-division

display on the oscilloscope and center the waveform on screen.

6. Set the sine wave generator frequency range switch to the high-frequency

position.

7. Slowly increase the setting of the variable frequency control until the display

amplitude decreases to 4.2 divisions (–3 dB).

8. Check the sine wave generator frequency readout. The frequency must be

greater than or equal to the P6136 specified system bandwidth.

9. If the reading is less than the required value, repeat the High-Frequency

Compensation adjustments beginning on page 10.

Bandwidth Check

Service Information

P6136 Instruction Manual

20 ns

10 ns

5 ns

C1, R2

5ns/div.

Figure 10: Effects of high-frequency adjustments on waveform

Maintenance

Use the following procedures to clean and maintain the P6136 probe.

To remove accumulated dirt from the probe exterior, use a soft cloth dampened

with a nonresidue cleaner, preferably isopropyl alcohol. In particular, avoid

solvents such as benzene, toluene, xylene, or acetone.

Modular construction has been used to simplify repair. The probe tip assembly,

compensation box, and cable are available as separate units through your local

Tektronix field office or representative. Individual components within the

compensation box are not replaceable. See page 14 for a list of replaceable parts.

The probe tip assembly unscrews from the probe head/cable assembly. To

disconnect the cable from the compensation box, do the following:

1. Unscrew the compensation box retainer nut about two complete turns.

2. Pull out the cable until it separates from the compensation box.

3. To reconnect the cable to the compensation box, implement the above steps

in reverse.

Cleaning

Probe Module

Replacement

P6136 Instruction Manual

Replaceable Parts

This section contains a list of the replaceable modules for the P6136 probe. Use

this list to identify and order replacement parts.

Parts Ordering Information

Replacement parts are available through your local Tektronix field office or

representative.

Changes to Tektronix products are sometimes made to accommodate improved

components as they become available and to give you the benefit of the latest

improvements. Therefore, when ordering parts, it is important to include the

following information in your order:

H Part number

H Instrument type or model number

H Instrument serial number

H Instrument modification number, if applicable

If you order a part that has been replaced with a different or improved part, your

local Tektronix field office or representative will contact you concerning any

change in part number.

Change information, if any, is located at the rear of this manual.

Modules can be serviced by selecting one of the following three options. Contact

your local Tektronix service center or representative for repair assistance.

Module Exchange. In some cases you may exchange your module for a reman-

ufactured module. These modules cost significantly less than new modules and

meet the same factory specifications. For more information about the module

exchange program, call 1-800-TEK-WIDE, extension 6630.

Module Repair and Return. You may ship your module to us for repair, after which

we will return it to you.

New Modules. You may purchase replacement modules in the same way as other

replacement parts.

Module Servicing

Page is loading ...

Tektronix P6136 User manual

Brand: Tektronix

Model: P6136

Category: Measuring, testing & control

Type: User manual

Download PDF

report

Tektronix P6136 User manual

Tektronix P6136 User manual

Related papers

Other documents